#1E5671
Closest named color: Deep Sea Blue (#015482). oklch(42.9% 0.073 233.1), rgb(30, 86, 113).
Aa
White text reads best on this color (8.00:1).
About this color
#1E5671 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.073 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.033 away. White text reads best on it, at 8.00:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #1E5671 |
| RGB | rgb(30, 86, 113) |
| HSL | hsl(200, 58%, 28%) |
| OKLCH | oklch(42.9% 0.073 233.1) |
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 #1E5671 | 8.00:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #1E5671 | 2.62:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #1E5671 text on white | 8.00:1 | AAA | Lc 87.5 | Fine for body text |
| #1E5671 text on black | 2.62:1 | Fails | Lc -14.7 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A6C6D8
oklch(80.9% 0.043 232.7)
-
Step 400
400
#75A8C4
oklch(70.6% 0.068 233)
-
Step 500
500
#4F92B6
oklch(63% 0.087 234)
-
Step 600
600
#2E7CA2
oklch(55.6% 0.095 233.5)
-
Step 700
700
#20698A
oklch(49.2% 0.087 232.4)
-
Step 800
800 (this color)
#1E5671
oklch(42.9% 0.073 233.1)
-
Step 900
900
#1F475B
oklch(37.8% 0.056 232.7)
-
Step 950
950
#132935
oklch(26.9% 0.036 234.1)
#1E5671 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) | #495572 | 0.047 |
| Deuteranopia (no green cones) | #3D4D71 | 0.039 |
| Tritanopia (no blue cones) | #005D5F | 0.045 |
| Achromatopsia (no color) | #505050 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E5671
#1E5671
oklch(42.9% 0.073 233.1)
- #6F4427
#6F4427
oklch(43% 0.073 53.5)
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 #1E5671, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.033
- Petrol #005F6A ΔE 0.035
- YInMn Blue #415A77 ΔE 0.041
- Light Navy #155084 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.042
- Deep Teal #00555A ΔE 0.044
- Dusk Blue #26538D ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.054
Use #1E5671 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.