#617E81
Closest named color: Battleship Grey (#6B7C85). oklch(57.2% 0.034 204.1), rgb(97, 126, 129).
Aa
Black text reads best on this color (4.80:1).
About this color
#617E81 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.034 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.017 away. Black text reads best on it, at 4.80:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.80:1 |
| White text | 4.36:1 |
Values
| HEX | #617E81 |
| RGB | rgb(97, 126, 129) |
| HSL | hsl(186, 14%, 44%) |
| OKLCH | oklch(57.2% 0.034 204.1) |
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 #617E81 | 4.36:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #617E81 | 4.80:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #617E81 text on white | 4.36:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #617E81 text on black | 4.80:1 | AA | Lc -31.4 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D3DBDC
oklch(88.6% 0.009 205.9)
-
Step 300
300
#B6C4C5
oklch(81% 0.015 202)
-
Step 400
400
#90A5A7
oklch(70.6% 0.024 203.6)
-
Step 500
500
#748F92
oklch(63% 0.031 204.7)
-
Step 600
600 (this color)
#617E81
oklch(57.2% 0.034 204.1)
-
Step 700
700
#4C6669
oklch(49.1% 0.031 205)
-
Step 800
800
#3F5355
oklch(42.6% 0.025 203.9)
-
Step 900
900
#354546
oklch(37.7% 0.021 201.1)
-
Step 950
950
#1F2829
oklch(26.9% 0.013 204.7)
#617E81 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) | #797B81 | 0.033 |
| Deuteranopia (no green cones) | #747781 | 0.031 |
| Tritanopia (no blue cones) | #57807F | 0.014 |
| Achromatopsia (no color) | #797979 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #617E81
#617E81
oklch(57.2% 0.034 204.1)
- #8B716E
#8B716E
oklch(57.3% 0.033 25.8)
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 #617E81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.017
- Grey Blue #647D8E ΔE 0.022
- Steel Grey #6F828A ΔE 0.026
- Battleship Gray #6C757D ΔE 0.028
- Slate Gray #708090 ΔE 0.032
- Medium Grey #7D7F7C ΔE 0.039
- Steel #738595 ΔE 0.043
- Gray #808080 ΔE 0.044
Use #617E81 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.