#508997
Closest named color: Grey Blue (#647D8E). oklch(59.6% 0.063 215.3), rgb(80, 137, 151).
Aa
Black text reads best on this color (5.36:1).
About this color
#508997 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.063 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.037 away. Black text reads best on it, at 5.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 5.36:1 |
| White text | 3.91:1 |
Values
| HEX | #508997 |
| RGB | rgb(80, 137, 151) |
| HSL | hsl(192, 31%, 45%) |
| OKLCH | oklch(59.6% 0.063 215.3) |
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 #508997 | 3.91:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #508997 | 5.36:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #508997 text on white | 3.91:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #508997 text on black | 5.36:1 | AA | Lc -35.2 | 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 500.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CDDCE0
oklch(88.4% 0.017 215.5)
-
Step 300
300
#ABC6CD
oklch(80.9% 0.031 215.1)
-
Step 400
400
#7DA9B4
oklch(70.7% 0.05 214.9)
-
Step 500
500 (this color)
#508997
oklch(59.6% 0.063 215.3)
-
Step 600
600
#3E7E8D
oklch(55.7% 0.069 215.1)
-
Step 700
700
#306A78
oklch(49.2% 0.064 215.9)
-
Step 800
800
#295661
oklch(42.6% 0.053 215.8)
-
Step 900
900
#26474F
oklch(37.6% 0.041 215.1)
-
Step 950
950
#172A2E
oklch(27.1% 0.026 212.5)
#508997 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) | #7F8698 | 0.057 |
| Deuteranopia (no green cones) | #747D97 | 0.052 |
| Tritanopia (no blue cones) | #2D8E8D | 0.037 |
| Achromatopsia (no color) | #818181 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #508997
#508997
oklch(59.6% 0.063 215.3)
- #A17265
#A17265
oklch(59.6% 0.063 36.1)
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 #508997, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.037
- Steel Grey #6F828A ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.040
- Dusty Teal #4C9085 ΔE 0.040
- Steel #738595 ΔE 0.041
- Slate Gray #708090 ΔE 0.041
- Teal Blue #01889F ΔE 0.043
- Off Blue #5684AE ΔE 0.044
Use #508997 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.