#1D475F
Closest named color: Dark Grey Blue (#29465B). oklch(38% 0.062 236.7), rgb(29, 71, 95).
Aa
White text reads best on this color (9.91:1).
About this color
#1D475F is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.062 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.013 away. White text reads best on it, at 9.91:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.11:1 |
| White text | 9.91:1 |
Values
| HEX | #1D475F |
| RGB | rgb(29, 71, 95) |
| HSL | hsl(202, 53%, 24%) |
| OKLCH | oklch(38% 0.062 236.7) |
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 #1D475F | 9.91:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #1D475F | 2.11:1 | Fails | Lc 11.1 | Not readable |
| #1D475F text on white | 9.91:1 | AAA | Lc 92.8 | Preferred for body text |
| #1D475F text on black | 2.11:1 | Fails | Lc -9.7 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A5C6DB
oklch(80.9% 0.046 236.1)
-
Step 400
400
#73A8C9
oklch(70.7% 0.074 236.6)
-
Step 500
500
#4B92BC
oklch(63.1% 0.095 236.9)
-
Step 600
600
#297CA8
oklch(55.7% 0.103 236.4)
-
Step 700
700
#1A6890
oklch(49.1% 0.096 236.7)
-
Step 800
800
#195575
oklch(42.7% 0.08 236.7)
-
Step 900
900 (this color)
#1D475F
oklch(38% 0.062 236.7)
-
Step 950
950
#122937
oklch(26.9% 0.039 237.4)
#1D475F 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) | #3C4760 | 0.037 |
| Deuteranopia (no green cones) | #33405F | 0.031 |
| Tritanopia (no blue cones) | #004D4F | 0.042 |
| Achromatopsia (no color) | #434343 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D475F
#1D475F
oklch(38% 0.062 236.7)
- #5B391F
#5B391F
oklch(37.9% 0.062 56.9)
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 #1D475F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.013
- Charcoal #264653 ΔE 0.021
- Dark Teal #014D4E ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.048
- Deep Teal #00555A ΔE 0.050
- Twilight Blue #0A437A ΔE 0.052
- Midnight Green #073B4C ΔE 0.052
Use #1D475F 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.