#558182
Closest named color: Battleship Grey (#6B7C85). oklch(57.2% 0.048 197.7), rgb(85, 129, 130).
Aa
Black text reads best on this color (4.84:1).
About this color
#558182 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.048 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.031 away. Black text reads best on it, at 4.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #558182 |
| RGB | rgb(85, 129, 130) |
| HSL | hsl(181, 21%, 42%) |
| OKLCH | oklch(57.2% 0.048 197.7) |
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 #558182 | 4.33:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #558182 | 4.84:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #558182 text on white | 4.33:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #558182 text on black | 4.84:1 | AA | Lc -31.7 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D0DCDC
oklch(88.5% 0.013 196.9)
-
Step 300
300
#B1C5C5
oklch(80.8% 0.022 196.7)
-
Step 400
400
#88A8A8
oklch(70.8% 0.035 196.4)
-
Step 500
500
#6A9293
oklch(63.1% 0.044 198)
-
Step 600
600 (this color)
#558182
oklch(57.2% 0.048 197.7)
-
Step 700
700
#41696A
oklch(49.2% 0.045 197.8)
-
Step 800
800
#365556
oklch(42.6% 0.037 198.4)
-
Step 900
900
#2F4647
oklch(37.6% 0.029 199.4)
-
Step 950
950
#1C292A
oklch(26.9% 0.018 202.1)
#558182 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) | #7B7D82 | 0.050 |
| Deuteranopia (no green cones) | #737782 | 0.046 |
| Tritanopia (no blue cones) | #448481 | 0.019 |
| Achromatopsia (no color) | #797979 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558182
#558182
oklch(57.2% 0.048 197.7)
- #926D6D
#926D6D
oklch(57.2% 0.047 18.6)
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 #558182, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.031
- Grey Blue #647D8E ΔE 0.032
- Steel Grey #6F828A ΔE 0.036
- Battleship Gray #6C757D ΔE 0.042
- Slate Gray #708090 ΔE 0.043
- Dusty Teal #4C9085 ΔE 0.044
- Stormy Blue #507B9C ΔE 0.050
- Dark Cyan #008B8B ΔE 0.050
Use #558182 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.