#5997DF
Closest named color: Cornflower Blue (#6495ED). oklch(66.6% 0.126 253.3), rgb(89, 151, 223).
Aa
Black text reads best on this color (6.91:1).
About this color
#5997DF is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.126 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.026 away. Black text reads best on it, at 6.91:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.91:1 |
| White text | 3.03:1 |
Values
| HEX | #5997DF |
| RGB | rgb(89, 151, 223) |
| HSL | hsl(212, 68%, 61%) |
| OKLCH | oklch(66.6% 0.126 253.3) |
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 #5997DF | 3.03:1 | AA large text | Lc -62.3 | Content text, not long reading |
| Black text on #5997DF | 6.91:1 | AA | Lc 47.1 | Large or bold text, headings |
| #5997DF text on white | 3.03:1 | AA large text | Lc 56.9 | Large or bold text, headings |
| #5997DF text on black | 6.91:1 | AA | Lc -44.8 | 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
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A5C4E8
oklch(81% 0.061 252.4)
-
Step 400
400
#74A4DD
oklch(70.7% 0.099 253.3)
-
Step 500
500 (this color)
#5997DF
oklch(66.6% 0.126 253.3)
-
Step 600
600
#3075C0
oklch(55.6% 0.136 253.1)
-
Step 700
700
#2262A6
oklch(49.2% 0.126 253)
-
Step 800
800
#1E5087
oklch(42.7% 0.106 253.3)
-
Step 900
900
#1F436C
oklch(37.8% 0.082 253.3)
-
Step 950
950
#13273F
oklch(26.9% 0.052 254)
#5997DF 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) | #799BE2 | 0.038 |
| Deuteranopia (no green cones) | #678EDE | 0.026 |
| Tritanopia (no blue cones) | #00A8B1 | 0.105 |
| Achromatopsia (no color) | #949494 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5997DF
#5997DF
oklch(66.6% 0.126 253.3)
- #C2872B
#C2872B
oklch(66.7% 0.126 73.7)
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 #5997DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.026
- Chefchaouen Blue #4895EF ΔE 0.029
- Dark Sky Blue #448EE4 ΔE 0.035
- Soft Blue #6488EA ΔE 0.047
- Faded Blue #658CBB ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.066
- Perrywinkle #8F8CE7 ΔE 0.070
- Water Blue #0E87CC ΔE 0.073
Use #5997DF 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.