#5D91DE
Closest named color: Cornflower Blue (#6495ED). oklch(65.4% 0.128 258), rgb(93, 145, 222).
Aa
Black text reads best on this color (6.57:1).
About this color
#5D91DE is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.128 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.025 away. Black text reads best on it, at 6.57:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.57:1 |
| White text | 3.19:1 |
Values
| HEX | #5D91DE |
| RGB | rgb(93, 145, 222) |
| HSL | hsl(216, 66%, 62%) |
| OKLCH | oklch(65.4% 0.128 258) |
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 #5D91DE | 3.19:1 | AA large text | Lc -64.4 | Content text, not long reading |
| Black text on #5D91DE | 6.57:1 | AA | Lc 45.1 | Large or bold text, headings |
| #5D91DE text on white | 3.19:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #5D91DE text on black | 6.57:1 | 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
#E3EBF6
oklch(93.7% 0.017 256.3)
-
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
#79A2DF
oklch(70.7% 0.101 258.1)
-
Step 500
500 (this color)
#5D91DE
oklch(65.4% 0.128 258)
-
Step 600
600
#3B72C4
oklch(55.6% 0.14 258.3)
-
Step 700
700
#2D5FA9
oklch(49% 0.13 258.3)
-
Step 800
800
#264E89
oklch(42.7% 0.108 258.2)
-
Step 900
900
#24416D
oklch(37.6% 0.084 258.5)
-
Step 950
950
#152740
oklch(27.1% 0.053 256.9)
#5D91DE 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) | #7197E1 | 0.029 |
| Deuteranopia (no green cones) | #608ADC | 0.018 |
| Tritanopia (no blue cones) | #00A2AD | 0.111 |
| Achromatopsia (no color) | #909090 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D91DE
#5D91DE
oklch(65.4% 0.128 258)
- #BB851C
#BB851C
oklch(65.4% 0.128 77.9)
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 #5D91DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.025
- Dark Sky Blue #448EE4 ΔE 0.027
- Chefchaouen Blue #4895EF ΔE 0.029
- Soft Blue #6488EA ΔE 0.033
- Faded Blue #658CBB ΔE 0.052
- Dodger Blue #1E90FF ΔE 0.063
- Perrywinkle #8F8CE7 ΔE 0.064
- Water Blue #0E87CC ΔE 0.067
Use #5D91DE 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.