#5D99D2
Closest named color: Faded Blue (#658CBB). oklch(66.6% 0.106 248.5), rgb(93, 153, 210).
Aa
Black text reads best on this color (6.95:1).
About this color
#5D99D2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.106 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.043 away. Black text reads best on it, at 6.95:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.95:1 |
| White text | 3.02:1 |
Values
| HEX | #5D99D2 |
| RGB | rgb(93, 153, 210) |
| HSL | hsl(209, 57%, 59%) |
| OKLCH | oklch(66.6% 0.106 248.5) |
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 #5D99D2 | 3.02:1 | AA large text | Lc -62.2 | Content text, not long reading |
| Black text on #5D99D2 | 6.95:1 | AA | Lc 47.3 | Large or bold text, headings |
| #5D99D2 text on white | 3.02:1 | AA large text | Lc 56.8 | Large or bold text, headings |
| #5D99D2 text on black | 6.95:1 | AA | Lc -45.0 | 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
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300
#A7C4E1
oklch(80.8% 0.052 248.5)
-
Step 400
400
#77A5D2
oklch(70.6% 0.083 248.5)
-
Step 500
500 (this color)
#5D99D2
oklch(66.6% 0.106 248.5)
-
Step 600
600
#3577B3
oklch(55.5% 0.115 248.8)
-
Step 700
700
#27649A
oklch(49.1% 0.107 248.6)
-
Step 800
800
#22527D
oklch(42.7% 0.088 248.5)
-
Step 900
900
#214464
oklch(37.6% 0.069 248.2)
-
Step 950
950
#14283B
oklch(27% 0.044 248.6)
#5D99D2 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) | #819BD5 | 0.042 |
| Deuteranopia (no green cones) | #728FD1 | 0.033 |
| Tritanopia (no blue cones) | #00A6AD | 0.090 |
| Achromatopsia (no color) | #949494 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D99D2
#5D99D2
oklch(66.6% 0.106 248.5)
- #BE8747
#BE8747
oklch(66.5% 0.105 68.4)
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 #5D99D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.043
- Cornflower Blue #6495ED ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.051
- Greyblue #77A1B5 ΔE 0.061
- Silver Lake Blue #778DA9 ΔE 0.064
- Soft Blue #6488EA ΔE 0.065
- Dusty Blue #5A86AD ΔE 0.068
Use #5D99D2 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.