#5997CC
Closest named color: Faded Blue (#658CBB). oklch(65.7% 0.102 246), rgb(89, 151, 204).
Aa
Black text reads best on this color (6.72:1).
About this color
#5997CC is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.102 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.035 away. Black text reads best on it, at 6.72:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.72:1 |
| White text | 3.12:1 |
Values
| HEX | #5997CC |
| RGB | rgb(89, 151, 204) |
| HSL | hsl(208, 53%, 57%) |
| OKLCH | oklch(65.7% 0.102 246) |
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 #5997CC | 3.12:1 | AA large text | Lc -63.5 | Content text, not long reading |
| Black text on #5997CC | 6.72:1 | AA | Lc 46.0 | Large or bold text, headings |
| #5997CC text on white | 3.12:1 | AA large text | Lc 58.1 | Large or bold text, headings |
| #5997CC text on black | 6.72:1 | AA | Lc -43.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A7C5E0
oklch(81% 0.05 245.6)
-
Step 400
400
#77A6D0
oklch(70.8% 0.08 246.2)
-
Step 500
500 (this color)
#5997CC
oklch(65.7% 0.102 246)
-
Step 600
600
#3378B0
oklch(55.5% 0.111 246.2)
-
Step 700
700
#256597
oklch(49.1% 0.103 245.9)
-
Step 800
800
#20537B
oklch(42.8% 0.086 245.5)
-
Step 900
900
#204563
oklch(37.8% 0.067 245.4)
-
Step 950
950
#14283A
oklch(26.9% 0.043 247.2)
#5997CC 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) | #8098CE | 0.044 |
| Deuteranopia (no green cones) | #718DCB | 0.035 |
| Tritanopia (no blue cones) | #00A4A9 | 0.086 |
| Achromatopsia (no color) | #929292 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5997CC
#5997CC
oklch(65.7% 0.102 246)
- #BC8449
#BC8449
oklch(65.7% 0.102 65.8)
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 #5997CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.035
- Dark Sky Blue #448EE4 ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.055
- Silver Lake Blue #778DA9 ΔE 0.058
- Dusty Blue #5A86AD ΔE 0.059
- Greyblue #77A1B5 ΔE 0.060
- Cool Blue #4984B8 ΔE 0.061
Use #5997CC 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.