#425369
Closest named color: YInMn Blue (#415A77). oklch(43.7% 0.042 255.1), rgb(66, 83, 105).
Aa
White text reads best on this color (7.85:1).
About this color
#425369 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.042 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.027 away. White text reads best on it, at 7.85:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.67:1 |
| White text | 7.85:1 |
Values
| HEX | #425369 |
| RGB | rgb(66, 83, 105) |
| HSL | hsl(214, 23%, 34%) |
| OKLCH | oklch(43.7% 0.042 255.1) |
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 #425369 | 7.85:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #425369 | 2.67:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #425369 text on white | 7.85:1 | AAA | Lc 87.2 | Fine for body text |
| #425369 text on black | 2.67:1 | Fails | Lc -14.9 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D3DAE2
oklch(88.5% 0.013 251.6)
-
Step 300
300
#B6C2D1
oklch(80.9% 0.025 254)
-
Step 400
400
#90A2B9
oklch(70.6% 0.039 254.6)
-
Step 500
500
#758BA8
oklch(63% 0.051 255.4)
-
Step 600
600
#5E7593
oklch(55.6% 0.054 255.2)
-
Step 700
700
#4D627E
oklch(49% 0.052 255.8)
-
Step 800
800 (this color)
#425369
oklch(43.7% 0.042 255.1)
-
Step 900
900
#364353
oklch(37.8% 0.032 253.8)
-
Step 950
950
#202731
oklch(27% 0.021 257.3)
#425369 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) | #4B546A | 0.014 |
| Deuteranopia (no green cones) | #475069 | 0.011 |
| Tritanopia (no blue cones) | #36585A | 0.038 |
| Achromatopsia (no color) | #525252 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425369
#425369
oklch(43.7% 0.042 255.1)
- #604F37
#604F37
oklch(43.8% 0.043 75.8)
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 #425369, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.027
- Dusty Grape #545775 ΔE 0.036
- Dusk #4E5481 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.052
- Petrol #005F6A ΔE 0.057
- Dark Grey Blue #29465B ΔE 0.058
- Slate #516572 ΔE 0.060
Use #425369 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.