#10657A
Closest named color: Petrol (#005F6A). oklch(47% 0.081 219.8), rgb(16, 101, 122).
Aa
White text reads best on this color (6.63:1).
About this color
#10657A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 47%, its chroma 0.081 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.031 away. White text reads best on it, at 6.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 3.16:1 |
| White text | 6.63:1 |
Values
| HEX | #10657A |
| RGB | rgb(16, 101, 122) |
| HSL | hsl(192, 77%, 27%) |
| OKLCH | oklch(47% 0.081 219.8) |
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 #10657A | 6.63:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #10657A | 3.16:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #10657A text on white | 6.63:1 | AA | Lc 82.4 | Fine for body text |
| #10657A text on black | 3.16:1 | AA large text | Lc -19.5 | 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 700.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A6C7D2
oklch(80.9% 0.039 220)
-
Step 400
400
#74AABC
oklch(70.7% 0.062 220.8)
-
Step 500
500
#4C95AB
oklch(63.1% 0.08 220)
-
Step 600
600
#297F96
oklch(55.6% 0.087 219.4)
-
Step 700
700 (this color)
#10657A
oklch(47% 0.081 219.8)
-
Step 800
800
#195768
oklch(42.6% 0.067 220)
-
Step 900
900
#1C4855
oklch(37.7% 0.053 220.3)
-
Step 950
950
#122A32
oklch(26.9% 0.033 222)
#10657A 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) | #58627B | 0.067 |
| Deuteranopia (no green cones) | #4B587A | 0.061 |
| Tritanopia (no blue cones) | #006C6C | 0.037 |
| Achromatopsia (no color) | #5C5C5C | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10657A
#10657A
oklch(47% 0.081 219.8)
- #814A37
#814A37
oklch(47% 0.081 39.7)
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 #10657A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.031
- Dark Aqua #05696B ΔE 0.032
- Peacock Blue #016795 ΔE 0.043
- Denim #3B638C ΔE 0.046
- YInMn Blue #415A77 ΔE 0.046
- Deep Turquoise #017374 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.049
- Dark Aquamarine #017371 ΔE 0.051
Use #10657A 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.