#1230CD
Closest named color: Blue Blue (#2242C7). oklch(42.6% 0.237 265.6), rgb(18, 48, 205).
Aa
White text reads best on this color (9.01:1).
About this color
#1230CD is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.237 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.039 away. White text reads best on it, at 9.01:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.237) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.33:1 |
| White text | 9.01:1 |
Values
| HEX | #1230CD |
| RGB | rgb(18, 48, 205) |
| HSL | hsl(230, 84%, 44%) |
| OKLCH | oklch(42.6% 0.237 265.6) |
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 #1230CD | 9.01:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #1230CD | 2.33:1 | Fails | Lc 14.8 | Not readable |
| #1230CD text on white | 9.01:1 | AAA | Lc 89.2 | Fine for body text |
| #1230CD text on black | 2.33:1 | Fails | Lc -13.0 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#739CFF
oklch(70.7% 0.152 265.7)
-
Step 500
500
#4F7FFF
oklch(63.1% 0.197 265.6)
-
Step 600
600
#2D5EFF
oklch(55.6% 0.244 265.5)
-
Step 700
700
#1736FF
oklch(49.2% 0.286 265.6)
-
Step 800
800 (this color)
#1230CD
oklch(42.6% 0.237 265.6)
-
Step 900
900
#1230A1
oklch(37.8% 0.184 265.5)
-
Step 950
950
#0A1E5E
oklch(27% 0.117 265.4)
#1230CD 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) | #0052D1 | 0.068 |
| Deuteranopia (no green cones) | #0040CA | 0.028 |
| Tritanopia (no blue cones) | #00607D | 0.179 |
| Achromatopsia (no color) | #494949 | 0.238 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1230CD
#1230CD
oklch(42.6% 0.237 265.6)
- #644A00
#644A00
oklch(42.5% 0.087 85.4)
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 #1230CD, closest first.
No curated palette has a color within ΔE 0.04 of #1230CD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.039
- Ultramarine Blue #1805DB ΔE 0.041
- True Blue #010FCC ΔE 0.044
- Pure Blue #0203E2 ΔE 0.050
- Medium Blue #0000CD ΔE 0.052
- Majorelle Blue #3F37C9 ΔE 0.053
- Sapphire #2138AB ΔE 0.057
- Strong Blue #0C06F7 ΔE 0.069
Use #1230CD 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.