#105E6A
Closest named color: Petrol (#005F6A). oklch(44.4% 0.072 210.8), rgb(16, 94, 106).
Aa
White text reads best on this color (7.41:1).
About this color
#105E6A is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.072 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.005 away. White text reads best on it, at 7.41:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.83:1 |
| White text | 7.41:1 |
Values
| HEX | #105E6A |
| RGB | rgb(16, 94, 106) |
| HSL | hsl(188, 74%, 24%) |
| OKLCH | oklch(44.4% 0.072 210.8) |
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 #105E6A | 7.41:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #105E6A | 2.83:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #105E6A text on white | 7.41:1 | AAA | Lc 85.4 | Fine for body text |
| #105E6A text on black | 2.83:1 | Fails | Lc -16.6 | 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 800.
-
Step 50
50
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE2
oklch(88.5% 0.024 209.8)
-
Step 300
300
#A2C8D0
oklch(80.8% 0.042 211.9)
-
Step 400
400
#6DACB8
oklch(70.6% 0.067 210.9)
-
Step 500
500
#3F97A7
oklch(63% 0.086 211.5)
-
Step 600
600
#0F8292
oklch(55.7% 0.094 210.3)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800 (this color)
#105E6A
oklch(44.4% 0.072 210.8)
-
Step 900
900
#144952
oklch(37.5% 0.056 211.1)
-
Step 950
950
#0E2B30
oklch(27% 0.036 210.5)
#105E6A 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) | #545A6B | 0.067 |
| Deuteranopia (no green cones) | #48526A | 0.060 |
| Tritanopia (no blue cones) | #006362 | 0.024 |
| Achromatopsia (no color) | #555555 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #105E6A
#105E6A
oklch(44.4% 0.072 210.8)
- #76443B
#76443B
oklch(44.4% 0.071 31)
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 #105E6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.005
- Dark Aqua #05696B ΔE 0.035
- Deep Teal #00555A ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.060
Use #105E6A 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.