#597B75
Closest named color: Battleship Gray (#6C757D). oklch(55.5% 0.04 182.7), rgb(89, 123, 117).
Aa
White text reads best on this color (4.65:1).
About this color
#597B75 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.040 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.035 away. White text reads best on it, at 4.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.51:1 |
| White text | 4.65:1 |
Values
| HEX | #597B75 |
| RGB | rgb(89, 123, 117) |
| HSL | hsl(169, 16%, 42%) |
| OKLCH | oklch(55.5% 0.04 182.7) |
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 #597B75 | 4.65:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #597B75 | 4.51:1 | AA | Lc 31.8 | Non-text elements, placeholder text |
| #597B75 text on white | 4.65:1 | AA | Lc 72.3 | Content text, not long reading |
| #597B75 text on black | 4.51:1 | AA | Lc -29.4 | Dividers and decoration only |
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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D2DBD9
oklch(88.4% 0.01 181.4)
-
Step 300
300
#B5C5C1
oklch(81% 0.018 179.2)
-
Step 400
400
#8EA7A2
oklch(70.8% 0.029 182)
-
Step 500
500
#71918B
oklch(63.1% 0.037 182.4)
-
Step 600
600 (this color)
#597B75
oklch(55.5% 0.04 182.7)
-
Step 700
700
#496862
oklch(49.1% 0.037 181.4)
-
Step 800
800
#3C5550
oklch(42.8% 0.031 181)
-
Step 900
900
#344643
oklch(37.8% 0.023 183.7)
-
Step 950
950
#1E2927
oklch(27% 0.016 182.8)
#597B75 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) | #787775 | 0.043 |
| Deuteranopia (no green cones) | #717276 | 0.041 |
| Tritanopia (no blue cones) | #4F7C79 | 0.012 |
| Achromatopsia (no color) | #747474 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #597B75
#597B75
oklch(55.5% 0.04 182.7)
- #886A71
#886A71
oklch(55.6% 0.039 2.9)
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 #597B75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.035
- Battleship Grey #6B7C85 ΔE 0.036
- Grey Blue #647D8E ΔE 0.042
- Steel Grey #6F828A ΔE 0.048
- Dim Gray #696969 ΔE 0.053
- Medium Grey #7D7F7C ΔE 0.053
- Metallic Blue #4F738E ΔE 0.054
- Slate Gray #708090 ΔE 0.054
Use #597B75 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.