#5D91DF
Closest named color: Cornflower Blue (#6495ED). oklch(65.5% 0.13 258.3), rgb(93, 145, 223).
Aa
Black text reads best on this color (6.58:1).
About this color
#5D91DF is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.130 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.024 away. Black text reads best on it, at 6.58:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.58:1 |
| White text | 3.19:1 |
Values
| HEX | #5D91DF |
| RGB | rgb(93, 145, 223) |
| HSL | hsl(216, 67%, 62%) |
| OKLCH | oklch(65.5% 0.13 258.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #5D91DF | 3.19:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #5D91DF | 6.58:1 | AA | Lc 45.2 | Large or bold text, headings |
| #5D91DF text on white | 3.19:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #5D91DF text on black | 6.58:1 | AA | Lc -42.8 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EAF6
oklch(93.5% 0.018 258.4)
-
Step 200
200
#CBDAF1
oklch(88.4% 0.036 258.9)
-
Step 300
300
#A8C2EA
oklch(80.8% 0.064 258.9)
-
Step 400
400
#79A2E0
oklch(70.7% 0.102 258.5)
-
Step 500
500 (this color)
#5D91DF
oklch(65.5% 0.13 258.3)
-
Step 600
600
#3B72C4
oklch(55.6% 0.14 258.3)
-
Step 700
700
#2D5FAA
oklch(49.1% 0.132 258.5)
-
Step 800
800
#264E89
oklch(42.7% 0.108 258.2)
-
Step 900
900
#24416E
oklch(37.7% 0.085 258.9)
-
Step 950
950
#152740
oklch(27.1% 0.053 256.9)
#5D91DF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7097E2 | 0.028 |
| Deuteranopia (no green cones) | #5F8ADD | 0.018 |
| Tritanopia (no blue cones) | #00A3AD | 0.114 |
| Achromatopsia (no color) | #909090 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D91DF
#5D91DF
oklch(65.5% 0.13 258.3)
- #BB8519
#BB8519
oklch(65.4% 0.13 78.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #5D91DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.024
- Dark Sky Blue #448EE4 ΔE 0.026
- Chefchaouen Blue #4895EF ΔE 0.028
- Soft Blue #6488EA ΔE 0.032
- Faded Blue #658CBB ΔE 0.053
- Dodger Blue #1E90FF ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.064
- Water Blue #0E87CC ΔE 0.068
Use #5D91DF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.