#5D99BE
Closest named color: Faded Blue (#658CBB). oklch(65.7% 0.083 237), rgb(93, 153, 190).
Aa
Black text reads best on this color (6.76:1).
About this color
#5D99BE is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.083 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.036 away. Black text reads best on it, at 6.76:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.76:1 |
| White text | 3.10:1 |
Values
| HEX | #5D99BE |
| RGB | rgb(93, 153, 190) |
| HSL | hsl(203, 43%, 55%) |
| OKLCH | oklch(65.7% 0.083 237) |
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 #5D99BE | 3.10:1 | AA large text | Lc -63.3 | Content text, not long reading |
| Black text on #5D99BE | 6.76:1 | AA | Lc 46.2 | Large or bold text, headings |
| #5D99BE text on white | 3.10:1 | AA large text | Lc 57.9 | Large or bold text, headings |
| #5D99BE text on black | 6.76:1 | AA | Lc -43.9 | 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
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A9C5D8
oklch(80.9% 0.041 237.7)
-
Step 400
400
#79A7C5
oklch(70.6% 0.066 237.5)
-
Step 500
500 (this color)
#5D99BE
oklch(65.7% 0.083 237)
-
Step 600
600
#387BA2
oklch(55.7% 0.091 237.1)
-
Step 700
700
#2A678A
oklch(49% 0.084 237.2)
-
Step 800
800
#245470
oklch(42.6% 0.07 237.2)
-
Step 900
900
#23465B
oklch(37.8% 0.054 236.9)
-
Step 950
950
#152935
oklch(27% 0.034 236.3)
#5D99BE 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) | #8898C0 | 0.050 |
| Deuteranopia (no green cones) | #7B8EBD | 0.043 |
| Tritanopia (no blue cones) | #28A3A5 | 0.067 |
| Achromatopsia (no color) | #929292 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D99BE
#5D99BE
oklch(65.7% 0.083 237)
- #B8845E
#B8845E
oklch(65.6% 0.083 56.9)
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 #5D99BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.036
- Greyblue #77A1B5 ΔE 0.042
- Silver Lake Blue #778DA9 ΔE 0.044
- Blue Grey #758DA3 ΔE 0.048
- Cadet Blue #5F9EA0 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.055
- Cool Gray #8D99AE ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.060
Use #5D99BE 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.