#5D99C2
Closest named color: Faded Blue (#658CBB). oklch(65.8% 0.088 239.8), rgb(93, 153, 194).
Aa
Black text reads best on this color (6.80:1).
About this color
#5D99C2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.088 and its hue 240°. 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 6.80:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.80:1 |
| White text | 3.08:1 |
Values
| HEX | #5D99C2 |
| RGB | rgb(93, 153, 194) |
| HSL | hsl(204, 45%, 56%) |
| OKLCH | oklch(65.8% 0.088 239.8) |
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 #5D99C2 | 3.08:1 | AA large text | Lc -63.1 | Content text, not long reading |
| Black text on #5D99C2 | 6.80:1 | AA | Lc 46.4 | Large or bold text, headings |
| #5D99C2 text on white | 3.08:1 | AA large text | Lc 57.7 | Large or bold text, headings |
| #5D99C2 text on black | 6.80:1 | AA | Lc -44.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A8C5DA
oklch(80.9% 0.043 239.6)
-
Step 400
400
#79A7C7
oklch(70.7% 0.068 239.3)
-
Step 500
500 (this color)
#5D99C2
oklch(65.8% 0.088 239.8)
-
Step 600
600
#377AA5
oklch(55.5% 0.095 239.8)
-
Step 700
700
#29678E
oklch(49.2% 0.089 239.8)
-
Step 800
800
#245473
oklch(42.7% 0.073 239.9)
-
Step 900
900
#22455D
oklch(37.6% 0.058 240.6)
-
Step 950
950
#152936
oklch(27% 0.036 238.5)
#5D99C2 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) | #8799C4 | 0.049 |
| Deuteranopia (no green cones) | #798EC1 | 0.041 |
| Tritanopia (no blue cones) | #23A3A7 | 0.070 |
| Achromatopsia (no color) | #939393 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D99C2
#5D99C2
oklch(65.8% 0.088 239.8)
- #BA8559
#BA8559
oklch(65.9% 0.088 60.1)
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 #5D99C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.035
- Greyblue #77A1B5 ΔE 0.045
- Silver Lake Blue #778DA9 ΔE 0.047
- Blue Grey #758DA3 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.056
- Cadet Blue #5F9EA0 ΔE 0.058
- Cool Gray #8D99AE ΔE 0.062
- Off Blue #5684AE ΔE 0.062
Use #5D99C2 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.