#1E5166
Closest named color: Deep Teal (#00555A). oklch(41% 0.064 228.6), rgb(30, 81, 102).
Aa
White text reads best on this color (8.66:1).
About this color
#1E5166 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.064 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.032 away. White text reads best on it, at 8.66:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.42:1 |
| White text | 8.66:1 |
Values
| HEX | #1E5166 |
| RGB | rgb(30, 81, 102) |
| HSL | hsl(198, 55%, 26%) |
| OKLCH | oklch(41% 0.064 228.6) |
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 #1E5166 | 8.66:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #1E5166 | 2.42:1 | Fails | Lc 14.5 | Not readable |
| #1E5166 text on white | 8.66:1 | AAA | Lc 89.5 | Fine for body text |
| #1E5166 text on black | 2.42:1 | Fails | Lc -12.7 | Not readable |
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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D4
oklch(81% 0.037 228.5)
-
Step 400
400
#79A8BE
oklch(70.6% 0.06 228.6)
-
Step 500
500
#5493AE
oklch(63.2% 0.077 227.7)
-
Step 600
600
#377D9A
oklch(55.7% 0.083 228.3)
-
Step 700
700
#286983
oklch(49.1% 0.077 228)
-
Step 800
800 (this color)
#1E5166
oklch(41% 0.064 228.6)
-
Step 900
900
#224757
oklch(37.8% 0.05 228.4)
-
Step 950
950
#152933
oklch(26.9% 0.032 231.4)
#1E5166 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) | #465067 | 0.046 |
| Deuteranopia (no green cones) | #3C4866 | 0.041 |
| Tritanopia (no blue cones) | #005758 | 0.038 |
| Achromatopsia (no color) | #4B4B4B | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E5166
#1E5166
oklch(41% 0.064 228.6)
- #673F2A
#673F2A
oklch(41% 0.065 48)
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 #1E5166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.032
- Dark Grey Blue #29465B ΔE 0.035
- Dark Slate Gray #2F4F4F ΔE 0.039
- Charcoal #264653 ΔE 0.041
- Petrol #005F6A ΔE 0.044
- Dark Teal #014D4E ΔE 0.046
- Deep Sea Blue #015482 ΔE 0.046
- Light Navy #155084 ΔE 0.052
Use #1E5166 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.