#0025FF
Closest named color: Rich Blue (#021BF9). oklch(47.1% 0.3 264.2), rgb(0, 37, 255).
Aa
White text reads best on this color (7.75:1).
About this color
#0025FF is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.300 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Blue (#021BF9), ΔE 0.015 away. White text reads best on it, at 7.75:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.300) |
| Temperature | cool |
| Nearest name | Rich Blue (#021BF9) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #0025FF |
| RGB | rgb(0, 37, 255) |
| HSL | hsl(231, 100%, 50%) |
| OKLCH | oklch(47.1% 0.3 264.2) |
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 #0025FF | 7.75:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #0025FF | 2.70:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #0025FF text on white | 7.75:1 | AAA | Lc 84.4 | Fine for body text |
| #0025FF text on black | 2.70:1 | Fails | Lc -17.5 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7DAFF
oklch(88.6% 0.055 263.7)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#245FFF
oklch(55.6% 0.245 264.2)
-
Step 700
700 (this color)
#0025FF
oklch(47.1% 0.3 264.2)
-
Step 800
800
#022DD3
oklch(42.6% 0.248 264.2)
-
Step 900
900
#072EA6
oklch(37.7% 0.194 264.2)
-
Step 950
950
#061D61
oklch(26.9% 0.123 264.4)
#0025FF 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) | #005FFF | 0.096 |
| Deuteranopia (no green cones) | #0045FC | 0.044 |
| Tritanopia (no blue cones) | #007199 | 0.223 |
| Achromatopsia (no color) | #525252 | 0.302 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0025FF
#0025FF
oklch(47.1% 0.3 264.2)
- #745500
#745500
oklch(47% 0.096 84)
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 #0025FF, closest first.
No curated palette has a color within ΔE 0.04 of #0025FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Blue #021BF9 ΔE 0.015
- Vivid Blue #152EFF ΔE 0.016
- Blue #0000FF ΔE 0.023
- Primary Blue #0804F9 ΔE 0.025
- Vibrant Blue #0339F8 ΔE 0.026
- Strong Blue #0C06F7 ΔE 0.026
- Light Royal Blue #3A2EFE ΔE 0.047
- Pure Blue #0203E2 ΔE 0.059
Use #0025FF 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.