#1E5575
Closest named color: Deep Sea Blue (#015482). oklch(42.9% 0.078 238.1), rgb(30, 85, 117).
Aa
White text reads best on this color (8.04:1).
About this color
#1E5575 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.078 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.025 away. White text reads best on it, at 8.04:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.61:1 |
| White text | 8.04:1 |
Values
| HEX | #1E5575 |
| RGB | rgb(30, 85, 117) |
| HSL | hsl(202, 59%, 29%) |
| OKLCH | oklch(42.9% 0.078 238.1) |
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 #1E5575 | 8.04:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #1E5575 | 2.61:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #1E5575 text on white | 8.04:1 | AAA | Lc 87.6 | Fine for body text |
| #1E5575 text on black | 2.61:1 | Fails | Lc -14.5 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CBDCE8
oklch(88.5% 0.025 238.4)
-
Step 300
300
#A6C6DB
oklch(81% 0.045 236.9)
-
Step 400
400
#75A8C9
oklch(70.8% 0.073 237.5)
-
Step 500
500
#4F91BB
oklch(63% 0.093 238.5)
-
Step 600
600
#2F7BA7
oklch(55.6% 0.1 238)
-
Step 700
700
#206790
oklch(49% 0.095 238.8)
-
Step 800
800 (this color)
#1E5575
oklch(42.9% 0.078 238.1)
-
Step 900
900
#1F465E
oklch(37.7% 0.06 238.3)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#1E5575 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) | #465576 | 0.043 |
| Deuteranopia (no green cones) | #3A4C74 | 0.036 |
| Tritanopia (no blue cones) | #005D60 | 0.052 |
| Achromatopsia (no color) | #505050 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E5575
#1E5575
oklch(42.9% 0.078 238.1)
- #6F4420
#6F4420
oklch(42.9% 0.078 58.4)
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 #1E5575, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.025
- Light Navy #155084 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.041
- Petrol #005F6A ΔE 0.042
- Dusk Blue #26538D ΔE 0.043
- Deep Teal #00555A ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.055
Use #1E5575 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.