#425EC1
Closest named color: Iris (#6258C4). oklch(51.5% 0.158 268.5), rgb(66, 94, 193).
Aa
White text reads best on this color (5.82:1).
About this color
#425EC1 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.158 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.044 away. White text reads best on it, at 5.82:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #425EC1 |
| RGB | rgb(66, 94, 193) |
| HSL | hsl(227, 51%, 51%) |
| OKLCH | oklch(51.5% 0.158 268.5) |
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 #425EC1 | 5.82:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #425EC1 | 3.60:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #425EC1 text on white | 5.82:1 | AA | Lc 78.8 | Fine for body text |
| #425EC1 text on black | 3.60:1 | AA large text | Lc -23.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F6
oklch(88.5% 0.042 267.7)
-
Step 300
300
#ACBFF3
oklch(80.8% 0.077 269)
-
Step 400
400
#809DED
oklch(70.7% 0.122 268.1)
-
Step 500
500
#6282E7
oklch(63.1% 0.156 268.4)
-
Step 600
600
#4A69D5
oklch(55.6% 0.169 268.4)
-
Step 700
700 (this color)
#425EC1
oklch(51.5% 0.158 268.5)
-
Step 800
800
#314896
oklch(42.8% 0.131 268.1)
-
Step 900
900
#2B3D77
oklch(37.7% 0.101 268.3)
-
Step 950
950
#192446
oklch(27% 0.065 268.3)
#425EC1 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) | #236BC5 | 0.038 |
| Deuteranopia (no green cones) | #0060BF | 0.041 |
| Tritanopia (no blue cones) | #007586 | 0.132 |
| Achromatopsia (no color) | #656565 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425EC1
#425EC1
oklch(51.5% 0.158 268.5)
- #806300
#806300
oklch(51.4% 0.105 88.5)
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 #425EC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.044
- Warm Blue #4B57DB ΔE 0.046
- Mid Blue #276AB3 ΔE 0.046
- French Blue #436BAD ΔE 0.051
- Royal Blue #4169E1 ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.058
- Light Indigo #6D5ACF ΔE 0.064
Use #425EC1 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.