#1C5D75
Closest named color: Petrol (#005F6A). oklch(44.9% 0.075 227), rgb(28, 93, 117).
Aa
White text reads best on this color (7.31:1).
About this color
#1C5D75 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.075 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.025 away. White text reads best on it, at 7.31:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.87:1 |
| White text | 7.31:1 |
Values
| HEX | #1C5D75 |
| RGB | rgb(28, 93, 117) |
| HSL | hsl(196, 61%, 28%) |
| OKLCH | oklch(44.9% 0.075 227) |
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 #1C5D75 | 7.31:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #1C5D75 | 2.87:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #1C5D75 text on white | 7.31:1 | AAA | Lc 85.1 | Fine for body text |
| #1C5D75 text on black | 2.87:1 | Fails | Lc -16.9 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#C9DDE6
oklch(88.5% 0.025 226.5)
-
Step 300
300
#A4C7D7
oklch(80.9% 0.044 227.3)
-
Step 400
400
#71AAC2
oklch(70.7% 0.069 226.4)
-
Step 500
500
#4794B3
oklch(63% 0.089 227.1)
-
Step 600
600
#217E9F
oklch(55.6% 0.097 227)
-
Step 700
700
#116A88
oklch(49% 0.09 227.3)
-
Step 800
800 (this color)
#1C5D75
oklch(44.9% 0.075 227)
-
Step 900
900
#194859
oklch(37.8% 0.058 225.5)
-
Step 950
950
#102A34
oklch(27% 0.037 225.8)
#1C5D75 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) | #505B76 | 0.055 |
| Deuteranopia (no green cones) | #445275 | 0.049 |
| Tritanopia (no blue cones) | #006465 | 0.041 |
| Achromatopsia (no color) | #565656 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C5D75
#1C5D75
oklch(44.9% 0.075 227)
- #774730
#774730
oklch(44.9% 0.075 45.9)
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 #1C5D75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.025
- YInMn Blue #415A77 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.042
- Dark Aqua #05696B ΔE 0.046
- Denim #3B638C ΔE 0.051
- Deep Teal #00555A ΔE 0.051
- Light Navy #155084 ΔE 0.053
Use #1C5D75 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.