#5D99AE
Closest named color: Cadet Blue (#5F9EA0). oklch(65% 0.07 222.4), rgb(93, 153, 174).
Aa
Black text reads best on this color (6.63:1).
About this color
#5D99AE is a medium-light, muted teal or cyan. In OKLCH its lightness is 65%, its chroma 0.070 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.030 away. Black text reads best on it, at 6.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.63:1 |
| White text | 3.16:1 |
Values
| HEX | #5D99AE |
| RGB | rgb(93, 153, 174) |
| HSL | hsl(196, 33%, 52%) |
| OKLCH | oklch(65% 0.07 222.4) |
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 #5D99AE | 3.16:1 | AA large text | Lc -64.1 | Content text, not long reading |
| Black text on #5D99AE | 6.63:1 | AA | Lc 45.4 | Large or bold text, headings |
| #5D99AE text on white | 3.16:1 | AA large text | Lc 58.7 | Large or bold text, headings |
| #5D99AE text on black | 6.63:1 | AA | Lc -43.1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE2
oklch(88.4% 0.019 222.2)
-
Step 300
300
#AAC6D1
oklch(80.9% 0.034 223.5)
-
Step 400
400
#7BA9B9
oklch(70.7% 0.054 221.4)
-
Step 500
500 (this color)
#5D99AE
oklch(65% 0.07 222.4)
-
Step 600
600
#3A7D93
oklch(55.5% 0.076 222.3)
-
Step 700
700
#2C6A7E
oklch(49.3% 0.07 222.3)
-
Step 800
800
#265666
oklch(42.7% 0.058 222.6)
-
Step 900
900
#244753
oklch(37.7% 0.045 222.5)
-
Step 950
950
#162A31
oklch(27.1% 0.029 222.4)
#5D99AE 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) | #8D96AF | 0.057 |
| Deuteranopia (no green cones) | #818DAE | 0.051 |
| Tritanopia (no blue cones) | #36A0A0 | 0.046 |
| Achromatopsia (no color) | #919191 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D99AE
#5D99AE
oklch(65% 0.07 222.4)
- #B4816D
#B4816D
oklch(64.9% 0.07 42.3)
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 #5D99AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.030
- Blue Grey #758DA3 ΔE 0.039
- Greyblue #77A1B5 ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.041
- Faded Blue #658CBB ΔE 0.048
- Light Slate Gray #778899 ΔE 0.053
- Dull Teal #5F9E8F ΔE 0.054
- Sea #3C9992 ΔE 0.055
Use #5D99AE 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.