#1E556D
Closest named color: Petrol (#005F6A). oklch(42.5% 0.069 230.4), rgb(30, 85, 109).
Aa
White text reads best on this color (8.15:1).
About this color
#1E556D is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.069 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.035 away. White text reads best on it, at 8.15:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #1E556D |
| RGB | rgb(30, 85, 109) |
| HSL | hsl(198, 57%, 27%) |
| OKLCH | oklch(42.5% 0.069 230.4) |
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 #1E556D | 8.15:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #1E556D | 2.57:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #1E556D text on white | 8.15:1 | AAA | Lc 88.0 | Fine for body text |
| #1E556D text on black | 2.57:1 | Fails | Lc -14.2 | 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
#E2EBF0
oklch(93.5% 0.012 231.7)
-
Step 200
200
#CBDCE5
oklch(88.4% 0.022 230.6)
-
Step 300
300
#A7C6D6
oklch(80.9% 0.04 230.3)
-
Step 400
400
#76A9C2
oklch(70.8% 0.065 230)
-
Step 500
500
#5093B2
oklch(63.1% 0.083 229.9)
-
Step 600
600
#317D9E
oklch(55.7% 0.09 230.1)
-
Step 700
700
#226987
oklch(49.1% 0.084 230.3)
-
Step 800
800 (this color)
#1E556D
oklch(42.5% 0.069 230.4)
-
Step 900
900
#204759
oklch(37.8% 0.054 230.4)
-
Step 950
950
#132A34
oklch(27.1% 0.034 228.3)
#1E556D 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) | #49546E | 0.048 |
| Deuteranopia (no green cones) | #3E4C6D | 0.041 |
| Tritanopia (no blue cones) | #005C5D | 0.043 |
| Achromatopsia (no color) | #4F4F4F | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E556D
#1E556D
oklch(42.5% 0.069 230.4)
- #6D432A
#6D432A
oklch(42.6% 0.069 50.8)
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 #1E556D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.038
- Deep Teal #00555A ΔE 0.038
- YInMn Blue #415A77 ΔE 0.045
- Light Navy #155084 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.049
Use #1E556D 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.