#55939D
Closest named color: Cadet Blue (#5F9EA0). oklch(62.5% 0.066 208.9), rgb(85, 147, 157).
Aa
Black text reads best on this color (6.04:1).
About this color
#55939D is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.066 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.035 away. Black text reads best on it, at 6.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #55939D |
| RGB | rgb(85, 147, 157) |
| HSL | hsl(188, 30%, 47%) |
| OKLCH | oklch(62.5% 0.066 208.9) |
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 #55939D | 3.47:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #55939D | 6.04:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #55939D text on white | 3.47:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #55939D text on black | 6.04:1 | AA | Lc -39.5 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDDF
oklch(88.5% 0.018 205.3)
-
Step 300
300
#AAC7CC
oklch(81% 0.032 209.2)
-
Step 400
400
#7BAAB2
oklch(70.7% 0.051 209.1)
-
Step 500
500 (this color)
#55939D
oklch(62.5% 0.066 208.9)
-
Step 600
600
#397F8A
oklch(55.6% 0.072 209.1)
-
Step 700
700
#2B6B75
oklch(49.1% 0.066 209.2)
-
Step 800
800
#25575F
oklch(42.6% 0.055 209.3)
-
Step 900
900
#24484E
oklch(37.7% 0.043 209.4)
-
Step 950
950
#162A2E
oklch(27% 0.027 211.7)
#55939D 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) | #898F9E | 0.063 |
| Deuteranopia (no green cones) | #7E869D | 0.058 |
| Tritanopia (no blue cones) | #329896 | 0.034 |
| Achromatopsia (no color) | #8A8A8A | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55939D
#55939D
oklch(62.5% 0.066 208.9)
- #AC7971
#AC7971
oklch(62.5% 0.066 29)
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 #55939D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.035
- Sea #3C9992 ΔE 0.035
- Dusty Teal #4C9085 ΔE 0.038
- Blue Grey #758DA3 ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.044
- Teal Green #0A9396 ΔE 0.045
- Dull Teal #5F9E8F ΔE 0.046
- Light Slate Gray #778899 ΔE 0.046
Use #55939D 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.