#508BA5
Closest named color: Dusty Blue (#5A86AD). oklch(60.7% 0.073 228.3), rgb(80, 139, 165).
Aa
Black text reads best on this color (5.57:1).
About this color
#508BA5 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.073 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.024 away. Black text reads best on it, at 5.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #508BA5 |
| RGB | rgb(80, 139, 165) |
| HSL | hsl(198, 35%, 48%) |
| OKLCH | oklch(60.7% 0.073 228.3) |
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 #508BA5 | 3.76:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #508BA5 | 5.57:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #508BA5 text on white | 3.76:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #508BA5 text on black | 5.57:1 | AA | Lc -36.6 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#AAC6D3
oklch(81% 0.035 227.5)
-
Step 400
400
#7BA8BD
oklch(70.7% 0.057 228.4)
-
Step 500
500 (this color)
#508BA5
oklch(60.7% 0.073 228.3)
-
Step 600
600
#3A7C98
oklch(55.5% 0.08 228.5)
-
Step 700
700
#2C6982
oklch(49.2% 0.074 228.1)
-
Step 800
800
#265569
oklch(42.6% 0.061 228.5)
-
Step 900
900
#244756
oklch(37.8% 0.048 227.9)
-
Step 950
950
#162932
oklch(26.9% 0.03 229.7)
#508BA5 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) | #7E89A6 | 0.054 |
| Deuteranopia (no green cones) | #717FA5 | 0.048 |
| Tritanopia (no blue cones) | #1F9293 | 0.052 |
| Achromatopsia (no color) | #848484 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #508BA5
#508BA5
oklch(60.7% 0.073 228.3)
- #A7755B
#A7755B
oklch(60.7% 0.074 48.4)
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 #508BA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.024
- Off Blue #5684AE ΔE 0.028
- Cool Blue #4984B8 ΔE 0.041
- Steel Blue #4682B4 ΔE 0.041
- Blue NCS #118AB2 ΔE 0.042
- Faded Blue #658CBB ΔE 0.043
- Blue Grey #758DA3 ΔE 0.043
- Steel #738595 ΔE 0.043
Use #508BA5 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.