#4D8591
Closest named color: Grey Blue (#647D8E). oklch(58.3% 0.062 213), rgb(77, 133, 145).
Aa
Black text reads best on this color (5.07:1).
About this color
#4D8591 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.062 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.032 away. Black text reads best on it, at 5.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #4D8591 |
| RGB | rgb(77, 133, 145) |
| HSL | hsl(191, 31%, 44%) |
| OKLCH | oklch(58.3% 0.062 213) |
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 #4D8591 | 4.13:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #4D8591 | 5.07:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #4D8591 text on white | 4.13:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #4D8591 text on black | 5.07:1 | AA | Lc -33.3 | 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
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CEDCDF
oklch(88.5% 0.016 212)
-
Step 300
300
#ADC6CB
oklch(80.9% 0.028 211.1)
-
Step 400
400
#81A8B1
oklch(70.6% 0.044 213.4)
-
Step 500
500
#60939E
oklch(63.1% 0.057 212.7)
-
Step 600
600 (this color)
#4D8591
oklch(58.3% 0.062 213)
-
Step 700
700
#366974
oklch(49% 0.057 213.4)
-
Step 800
800
#2E565F
oklch(42.8% 0.047 213.9)
-
Step 900
900
#29474D
oklch(37.7% 0.037 211.7)
-
Step 950
950
#192A2D
oklch(27.1% 0.023 209.7)
#4D8591 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) | #7C8192 | 0.058 |
| Deuteranopia (no green cones) | #717991 | 0.053 |
| Tritanopia (no blue cones) | #2B8A89 | 0.034 |
| Achromatopsia (no color) | #7D7D7D | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D8591
#4D8591
oklch(58.3% 0.062 213)
- #9C6E64
#9C6E64
oklch(58.3% 0.061 32.6)
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 #4D8591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.032
- Stormy Blue #507B9C ΔE 0.039
- Steel Grey #6F828A ΔE 0.039
- Battleship Grey #6B7C85 ΔE 0.040
- Teal Blue #01889F ΔE 0.041
- Cerulean #457B9D ΔE 0.041
- Slate Gray #708090 ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.043
Use #4D8591 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.