#4C8089
Closest named color: Grey Blue (#647D8E). oklch(56.7% 0.057 209.7), rgb(76, 128, 137).
Aa
Black text reads best on this color (4.75:1).
About this color
#4C8089 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.057 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.031 away. Black text reads best on it, at 4.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #4C8089 |
| RGB | rgb(76, 128, 137) |
| HSL | hsl(189, 29%, 42%) |
| OKLCH | oklch(56.7% 0.057 209.7) |
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 #4C8089 | 4.41:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #4C8089 | 4.75:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #4C8089 text on white | 4.41:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #4C8089 text on black | 4.75:1 | AA | Lc -31.1 | 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 600.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AEC6CA
oklch(81% 0.027 208.7)
-
Step 400
400
#83A8AF
oklch(70.7% 0.042 210.4)
-
Step 500
500
#63939B
oklch(63.2% 0.053 209)
-
Step 600
600 (this color)
#4C8089
oklch(56.7% 0.057 209.7)
-
Step 700
700
#3A6971
oklch(49.1% 0.053 209.6)
-
Step 800
800
#30565C
oklch(42.7% 0.044 208.6)
-
Step 900
900
#2B474C
oklch(37.8% 0.035 210)
-
Step 950
950
#1A292C
oklch(26.9% 0.021 211.4)
#4C8089 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) | #787C8A | 0.055 |
| Deuteranopia (no green cones) | #6E7589 | 0.050 |
| Tritanopia (no blue cones) | #308483 | 0.029 |
| Achromatopsia (no color) | #787878 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C8089
#4C8089
oklch(56.7% 0.057 209.7)
- #956A63
#956A63
oklch(56.7% 0.057 29.3)
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 #4C8089, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.031
- Battleship Grey #6B7C85 ΔE 0.037
- Stormy Blue #507B9C ΔE 0.038
- Cerulean #457B9D ΔE 0.039
- Metallic Blue #4F738E ΔE 0.042
- Steel Grey #6F828A ΔE 0.043
- Battleship Gray #6C757D ΔE 0.046
- Slate Gray #708090 ΔE 0.046
Use #4C8089 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.