#508CA1
Closest named color: Dusty Blue (#5A86AD). oklch(60.8% 0.07 222.7), rgb(80, 140, 161).
Aa
Black text reads best on this color (5.60:1).
About this color
#508CA1 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.070 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.031 away. Black text reads best on it, at 5.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #508CA1 |
| RGB | rgb(80, 140, 161) |
| HSL | hsl(196, 34%, 47%) |
| OKLCH | oklch(60.8% 0.07 222.7) |
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 #508CA1 | 3.74:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #508CA1 | 5.60:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #508CA1 text on white | 3.74:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #508CA1 text on black | 5.60:1 | AA | Lc -36.8 | 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
#CCDCE2
oklch(88.4% 0.019 222.2)
-
Step 300
300
#AAC6D1
oklch(80.9% 0.034 223.5)
-
Step 400
400
#7BA9BA
oklch(70.8% 0.055 222.8)
-
Step 500
500 (this color)
#508CA1
oklch(60.8% 0.07 222.7)
-
Step 600
600
#3A7D94
oklch(55.6% 0.076 223.3)
-
Step 700
700
#2B697E
oklch(49% 0.071 223.5)
-
Step 800
800
#265666
oklch(42.7% 0.058 222.6)
-
Step 900
900
#244753
oklch(37.7% 0.045 222.5)
-
Step 950
950
#162A31
oklch(27.1% 0.029 222.4)
#508CA1 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) | #8089A2 | 0.057 |
| Deuteranopia (no green cones) | #7480A1 | 0.051 |
| Tritanopia (no blue cones) | #239393 | 0.046 |
| Achromatopsia (no color) | #848484 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #508CA1
#508CA1
oklch(60.8% 0.07 222.7)
- #A77561
#A77561
oklch(60.8% 0.07 42.7)
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 #508CA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.031
- Off Blue #5684AE ΔE 0.036
- Steel #738595 ΔE 0.042
- Blue Grey #758DA3 ΔE 0.043
- Light Slate Gray #778899 ΔE 0.045
- Blue NCS #118AB2 ΔE 0.045
- Teal Blue #01889F ΔE 0.046
- Grey Blue #647D8E ΔE 0.046
Use #508CA1 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.